14 results about "Monitors pulse" patented technology

The application discloses a pressure sensor based on friction nanogenerator, which can be deployed in a wearable device for monitoring pulse fluctuation, or deployed in an electronic device with a touch screen for detecting touch action. The sensor comprises two friction layers and at least one electrode layer. The two friction layers are respectively made of materials with different electron loss and gain abilities. The surface of at least one friction layer comprises a multi-stage micro-nano structure for inducing equal and opposite net charges corresponding to the applied pressure on the two friction layers under pressure. The multi-stage micro-nano structure comprises at least two kinds of micro-nano columnar structures with different heights. The electrode layer is used for generating current based on the net charges. The application can make the pressure sensor maintain high sensitivity to large static force through the designed multi-stage structure with different heights, and can expand the measurement range of the pressure sensor, so that the sensor maintains the same or similar sensitivity under various static forces.

The application discloses a kind of air spring state monitoring method and device based on wireless ranging, it is related to air spring monitoring technical field.The method includes obtaining the initial parameter data of actual launch pulse feedback by wireless ranging sensor;The theoretical parameter data of air spring inside itself is compared with the initial parameter data obtained in step 1, the state where current air spring is located is judged;According to current state, the actual parameter data of current is obtained by weighting calculation to center distance and surrounding edge distance;Based on the actual parameter data obtained, compare and analyze with theoretical parameter data, monitor the internal state of current air spring.The application integrates ranging sensor in air spring inside by using wireless ranging mode, can realize the monitoring of air spring inside by monitoring pulse data and histogram data and feasibility etc. raw data, solve the problem such as invalidation of measurement data.

The invention belongs to the technical field of safety protection, and particularly relates to a data processing method which comprises the following steps: detecting pulse data of the wrist of a worker through a first detection part, monitoring the stress state of a hook in real time through a second detection part, and positioning the position of the hook; the detected pulse data and the position and stress data of the hook are synchronously transmitted to the control module; according to the purpose, through a vibration piece and a first detection part on the inner wall of a binding ring, a second detection part combined with a hook, a communication module and a control module, directional vibration is conducted during empty hanging to remind a worker to position a problem hook, vibration warning and ground terminal alarming are synchronously triggered during low hanging, and meanwhile the first detection part monitors pulse data in real time; and risk processing delay caused by personnel disability is avoided.

The application discloses a self-checking method and system of a quantum computer, and the method comprises the following steps: monitoring pulse signals in the quantum computer; measuring different pulse signals in a preset sequence and superimposing the pulse signals to obtain an actual waveform collected by self-checking; comparing the actual waveform with a calibration waveform obtained in advance to obtain a final test waveform; and analyzing a voltage value of the test waveform to quickly find whether the pulse signals have errors and locate a device where the errors occur. The application monitors all the pulse signals in the quantum computer, measures the pulse signals in a time domain, compares the pulse waveforms collected after processing with the calibration waveform, and thus realizes the self-checking function. The embodiment of the application performs different switch sequences in different time periods, sequentially displays all the pulse signals, and thus achieves the effect of quickly finding problems and quickly locating the problems.

The utility model aims to provide the intelligent sofa with the pulse monitoring function, which is compact in structure and is convenient for the elderly to monitor the pulse condition in a sitting posture state. The sofa comprises a sofa seat, two detection assemblies which are arranged on the sofa seat in a sliding manner and are used for detecting pulses, a display screen which is arranged on the sofa seat and is used for displaying states, and an adjusting assembly which is arranged in the middle of the sofa seat and is used for adjusting the waist position, a sliding groove is formed in each handrail, each sliding groove is correspondingly matched with the corresponding detection assembly in a sliding mode, magnetic grooves are formed in the two sides of each sliding groove, each magnetic groove is provided with a magnetic strip, and each magnetic strip is correspondingly matched with the corresponding detection assembly in a magnetic attraction mode. The intelligent sofa is applied to the technical field of intelligent sofas.

The present application relates to the technical field of fracture monitoring, and is a pulse fracturing active fracture monitoring method based on seismic-electric coupling, which comprises using a fracturing nipple excitation source as an active elastic wave source, receiving the electric signal generated by seismic-electric coupling by using a multi-channel electrode array arranged, adopting time-frequency analysis and fracture inversion based on a frequency domain template to realize inversion and visualized output of the existence, spatial position, trend and scale of the fracture. The present application excites a pulse by using a fracturing nipple, generates an elastic wave signal, emits an excitation current, enhances the intensity of the seismic-electric effect electric signal, analyzes the change of the electric field around the fracturing nipple, and thus realizes real-time active monitoring of the development and distribution of fracturing cracks and improves the accuracy and real-time performance of crack detection.

This invention provides a flexible micro / nano fiber optic multiplexed chip and its monitoring system and method, belonging to the field of biomedical sensing technology. It includes: a myocardial marker detection layer with an embedded array of micro / nano fiber optic interferometers modified with different biological probes for simultaneous detection of multiple cardiovascular disease markers in sweat; a microfluidic channel layer with microfluidic channels for collecting and transmitting sweat and an outlet for sweat excretion; and a pulse wave monitoring layer with an embedded U-shaped micro / nano fiber for real-time pulse wave monitoring based on the bending loss principle, with a localized microfluidic channel inlet for sweat collection. Through the above technical solution, dual-modal multi-information synchronous monitoring is achieved, with high performance and high reliability.

The present application relates to a kind of flexible pressure sensor for monitoring pulse wave and its preparation method, first respectively prepare sensitive layer and interdigital electrode, then assemble to obtain the flexible pressure sensor for monitoring pulse wave;The prepared flexible pressure sensor for monitoring pulse wave includes sensitive layer and interdigital electrode, two electrodes of interdigital electrode are connected by wire, the sensitive layer is the polymer elastomer film with rigid convex microstructure array on surface;The rigid convex microstructure array is the convex microstructure array based on conductive metal;The highest sensitivity of the flexible pressure sensor is not less than 9.5kPa ‑1 , response time is not higher than 30ms, and the lower limit of mechanical detection is not higher than 8Pa.The rigid convex microstructure constructed on the surface of flexible sensitive layer has no lag and no damping in response to mechanical stimulation, which can give the pressure sensor high sensitivity, fast response speed and low detection limit performance;The preparation method of the present application is simple, and the production cost is low, which is suitable for large-scale industrial production.

The invention discloses a sensing system and method for monitoring an electromagnetic environment in a converter valve, and the system comprises a sensor probe which is disposed in the converter valve, is close to a to-be-detected IGBT module, is not directly electrically connected with a current loop of the to-be-detected IGBT module, and monitors the pulse current and magnetic field changes through the Faraday's law of electromagnetic induction; the data processing device comprises an AD sampling module, an FPGA control panel and an optical fiber transmitter, the input end of the AD sampling module is connected with the sensor probe, and the output end of the AD sampling module is connected with the FPGA control panel; a data input pin of the optical fiber emitter is connected with a serial port sending pin of the FPGA control board, and an output end of the optical fiber emitter is connected to a central control board in the converter valve through an optical fiber. The invention aims to solve the problems that the existing converter valve health state detection means lacks on-line monitoring means for the problems of device dynamic characteristic change and external electromagnetic intrusion, part of the detection methods are tedious in test process and high in application cost, the sensor manufacturing process is complicated, the influence of converter valve internal environment factors is caused, and the detection accuracy is high. And online monitoring of the health state of the internal device of the converter valve is difficult to realize.

The invention relates to the technical field of integrated photonics and medical health monitoring, in particular to a pulse feeling wrist strap based on a photon chip, a demodulation analysis system of the pulse feeling wrist strap and a pulse condition recognition method. The pulse feeling wrist strap is provided with the micro-ring sensing array module, the complete radial artery covers the'cun, guan and chi 'areas, quasi-distributed and accurate pulse condition area stress detection is achieved, pulse waveforms of the three areas are accurately monitored, the pulse condition type is objectively diagnosed, and in addition, the pulse feeling wrist strap has the blood pressure and heart rate monitoring function. The detection method based on the optical micro-ring is high in sensitivity and free of electromagnetic interference, meanwhile, the recognition result is more accurate by combining a deep learning model, and therefore the wearable intelligent pulse feeling wrist strap based on the photon chip provides an objective and efficient wearable tool for medical clinical pulse condition diagnosis and has high application value.

The invention relates to the technical field of time service synchronization, in particular to a multi-sensor system time service synchronization control method, which comprises the following steps of: acquiring pulse per second and positioning data through a serial port and an SPI (Serial Peripheral Interface), monitoring pulse stability, judging positioning effectiveness and generating an evaluation result; matching a priority extraction clock source to determine a target time service source, inputting the target time service source into a fitting algorithm to generate an alignment parameter, measuring a time difference, adjusting a trigger pulse to generate a calibration signal, and transmitting the calibration signal to a core processor to synchronously record a timestamp, calculate a difference value and confirm a time service or re-test certification state; according to the method, pulse stability and positioning mark cross judgment is performed to screen a time source, priority and fitting operation are performed to improve selection accuracy, triggering and reference pulse difference measurement are corrected and aligned step by step, calibration pulse feedback and threshold comparison are performed to construct a closed-loop mechanism, and the time reference is established. Abnormal signals are suppressed to guarantee consistency, multi-source synchronization is stable and continuous, and time drift caused by single-point fluctuation is reduced.

The invention relates to the technical field of fracturing crack monitoring, in particular to a pulse fracturing active crack monitoring method based on seismoelectric coupling, which comprises the following steps of: taking a fracturing short section excitation source as an active elastic wave source, receiving an electric signal generated by seismoelectric by using an arranged multi-channel electrode array, and performing time-frequency analysis and crack inversion based on a frequency domain template to obtain the active elastic wave source. And the inversion and visual output of the existence, spatial position, trend and scale of the crack are realized. According to the invention, pulses are excited through the fracturing pup joint, elastic wave signals are generated, excitation current is emitted, the intensity of seismic-electric effect electric signals is enhanced, and the change of an electric field around the fracturing pup joint is analyzed, so that the development and distribution of fracturing cracks are actively monitored in real time, and the precision and real-time performance of crack detection are improved.

The invention provides a rapid fault diagnosis device for a pulse valve of a dust removal system, belongs to the technical field of industrial automation control of a bag dust removal system in environmental protection equipment, and aims to solve the problems that existing pulse valve fault judgment depends on manual inspection, the efficiency is low, misjudgment is easy to occur in single signal detection, and a fault valve is difficult to position. The device comprises a PLC, a lift valve / pulse valve signal acquisition unit, a pressure detection unit, an analog quantity conversion unit and an alarm driving unit. Each acquisition unit transmits a lift valve state signal, a pulse valve state signal and a pulse valve pressure signal to the PLC, and the signals are comprehensively analyzed by a logic judgment module in the PLC, and after a fault is judged, a signal is output to drive an alarm. The fault of the pulse valve can be monitored in real time, the fault valve can be accurately positioned, the labor cost is reduced, stable operation of a dust removal system is guaranteed, and environmental pollution and production interruption are reduced.